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中文摘要: 采用NH3-NH4Cl-H2O体系浸出锌焙砂，经过锌粉两段净化，再电积出低铁金属锌。浸出时Fe、Ge、Si、As、Sb、Pb均进入浸出渣，而Zn,Cu、Cd等进入浸出液中。锌的平均浸出率90．8％，总回收率89．5％。得到的电锌产品中杂质元素Cu,Cd、Sb、As、Ni、Co、Pb和Fe含量≤0.0002%。
Abstract:A process of preparing low iron zinc has been studied.The process includes: leaching zinc calcine with ammonia and ammonium chloride solution,purifying with two stage cross-flow and zinc electrowinning.In leaching stage,iron,germanium,silicon,arsenic,antimony and lead remained to stay at residue,but zinc,copper,cadmium dissolved.The average leaching ratio of zinc is 90.82% and total recovery ration of zinc is 89.44%.The impurities of copper,cadmium,antimony,arsenic,nickel,cobalt,lead and iron in zinc are lower than 0.0002%.
keywords: Low iron zinc Ammonia Ammonium chloride Zinc calcine
文章编号： 中图分类号：TF813 文献标志码：
基金项目:
颜炜
四川省会东铅锌矿,四川西昌615000
颜炜' target='_blank'>YAN Wei
Huidong Lead-zinc Mine of Sichuan Province, Xichang 615000, China
引用文本：
颜炜.氨法制备低铁锌工艺研究[J].有色金属（冶炼部分）,2007(3):15-19.
.Process Study on Preparing Low Iron Zinc by Ammonia Method[J].Nonferrous Metals (Extractive Metallurgy),2007(3):15-19.
颜炜.氨法制备低铁锌工艺研究[J].有色金属（冶炼部分）,2007(3):15-19.
.Process Study on Preparing Low Iron Zinc by Ammonia Method[J].Nonferrous Metals (Extractive Metallurgy),2007(3):15-19.
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